The former president has published his ______.
A. memory
B. melody
C. memoirs
D. methods
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No other ______ writers than Tyler in America displayed such verbal riches.
A. Purchaser
B. Puritan
C. Publisher
D. Pucker
An enormous ______ remains between the advanced countries and the developing countries.
A. gap
B. vacancy
C. break
D. opening
At eight o’clock the _____ was a blaze of light and guests had begun to assemble.
A. ballroom
B. ballet
C. choir
D. musical
In higher animals, contraction became the specialized function of _____ cells.
A. power
B. strength
C. muscle
D. enforcement